gabime/spdlog
Spdlog
spdlog ist eine leistungsstarke C++-Logging-Bibliothek, die entwickelt wurde, um Diagnosemeldungen und Anwendungsereignisse aufzuzeichnen. Sie dient als asynchrones Logging-Framework und thread-sichere Bibliothek, die den Zugriff über konkurrierende Threads koordiniert, um die Integrität der Meldungen zu wahren.
Das Projekt fungiert als Multi-Target-Log-Router, der einzelne Ereignisse an mehrere Ziele wie Konsolen, Dateien und System-Daemons verteilt. Es enthält einen Log-Rotations-Manager, der Dateilebenszyklen durch einfache, rotierende oder tägliche Rollover-Strategien verwaltet, um eine Erschöpfung des Festplattenspeichers zu verhindern.
Die Bibliothek deckt ein breites Spektrum an Funktionen ab, einschließlich benutzerdefinierter Log-Formatierung für benutzerdefinierte Typen und Binärdaten, Erfassung von Quellorten und Verfolgung der Ausführungszeit. Sie bietet auch Observability-Primitive wie die Erfassung von Ereignis-Backtraces mittels Debug-Message-Ring-Buffering und die Möglichkeit, Log-Level über eine externe Laufzeitkonfiguration zu verwalten.
Die Bibliothek ist als Header-only-Distribution verfügbar, um separate Kompilierungsschritte zu eliminieren.
Features
- Logging Frameworks - Implements a high-performance system for capturing, formatting, and routing application log events asynchronously.
- Application Logging - Provides a high-performance C++ framework for recording diagnostic messages to consoles, files, and system services.
- Diagnostic Log Routers - Distributes single log events to multiple destinations such as consoles, files, and system daemons.
- C++ Logging Libraries - Provides a high-performance C++ logging framework available as either a header-only or compiled library.
- Thread-Safe Collection Wrappers - Ensures concurrency safety when recording diagnostic information across multiple threads.
- Asynchronous Event Dispatchers - Offloads logging operations to a background thread pool to prevent blocking the application's main execution flow.
- Lock-Free Concurrent Queues - Implements a lock-free concurrent queue to offload logging I/O operations to a background worker thread.
- Thread-Safe Logging - Coordinates concurrent access to logging resources to maintain message integrity and prevent data corruption.
- Asynchronous Logging - Processes log messages on a background thread pool to prevent logging operations from blocking main execution.
- Log Rotation Utilities - Includes a manager that automatically rotates log files based on size or time to prevent disk exhaustion.
- Log Sinks - Distributes log events to multiple destinations like consoles and files through a common pluggable sink interface.
- Log File Writers - Records diagnostic information to local files using various rollover strategies to manage disk space.
- Multi-Destination Forwarding - Replicates and sends a single log event to multiple independent storage endpoints simultaneously.
- Custom Log Writers - Allows the definition of new output destinations by implementing a custom sink interface.
- Console Log Formatters - Writes formatted and color-coded diagnostic messages directly to standard output or error streams.
- Header-Only Libraries - Provides a header-only distribution to simplify integration and eliminate the need for separate compilation steps.
- Source Location Capture - Captures the filename and line number of the call site using macros to provide precise diagnostic context.
- Custom Log Formatting - Enables the definition of specific layouts and patterns to inject source locations and user-defined types into logs.
- File Validation Policies - Automatically manages disk space by rotating log files based on size limits or time intervals.
- Log Layout Customization - Defines the layout of log messages using pattern strings or custom formatters.
- Log Management - Allows runtime control of log verbosity via environment variables or command-line arguments.
- Source Location Capture - Records the filename and line number where a log event occurred using macros and compiler flags.
- Content Format Transformers - Uses pattern strings and type resolution to transform raw data into human-readable formatted text.
- User-Defined Type Formatters - Provides the ability to define custom formatting logic for rendering complex application objects in log messages.
- Severity Level Filtering - Controls which messages are recorded based on severity levels that can be modified at compile time or runtime.
- Contextual Logging - Stores key-value pairs in thread-local storage to automatically append diagnostic context to log entries.
- Debug Message Ring Buffers - Stores recent debug messages in a ring buffer and flushes them only when explicitly triggered.
- Runtime Failure Backtrace Capturers - Captures a history of debug messages in a ring buffer to display them on demand after an error occurs.
- System Logging - Integrates with operating system logging daemons such as syslog or systemd to record diagnostic information.
- Systemüberwachung - Hochleistungs-C++-Logging-Bibliothek.
- Developer Tools and Utilities - High-performance logging library.
- Formatting and Logging - Fast, header-only C++ logging library.
- Logging Frameworks - Extremely fast C++ logging library.
- Logging Libraries - Fast and efficient C++ logging library.
- Logging Utilities - High-performance logging library.
- Networking and Utilities - Fast logging library.
